DE3866728D1 - METHOD FOR DEARYLATION OF ALKYLENE BISPHENOLS AND ALKYL TRISPHENOLS. - Google Patents
METHOD FOR DEARYLATION OF ALKYLENE BISPHENOLS AND ALKYL TRISPHENOLS.Info
- Publication number
- DE3866728D1 DE3866728D1 DE8888300617T DE3866728T DE3866728D1 DE 3866728 D1 DE3866728 D1 DE 3866728D1 DE 8888300617 T DE8888300617 T DE 8888300617T DE 3866728 T DE3866728 T DE 3866728T DE 3866728 D1 DE3866728 D1 DE 3866728D1
- Authority
- DE
- Germany
- Prior art keywords
- alkyl
- dearylation
- trisphenols
- alkylene bisphenols
- bisphenols
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/50—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions decreasing the number of carbon atoms
- C07C37/52—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions decreasing the number of carbon atoms by splitting polyaromatic compounds, e.g. polyphenolalkanes
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/51—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition
- C07C45/54—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition of compounds containing doubly bound oxygen atoms, e.g. esters
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Alkylenebisphenols and alkyltrisphenols are dearylated under mild conditions of temperature and pressure in the absence of HF to obtain alkyl and/or alkenyl substitute or phenols and other related polymer products.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/012,419 US4754081A (en) | 1987-02-09 | 1987-02-09 | Process for dearylation of alkylenebisphenols and alkyltrisphenols |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3866728D1 true DE3866728D1 (en) | 1992-01-23 |
Family
ID=21754881
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8888300617T Expired - Fee Related DE3866728D1 (en) | 1987-02-09 | 1988-01-26 | METHOD FOR DEARYLATION OF ALKYLENE BISPHENOLS AND ALKYL TRISPHENOLS. |
Country Status (7)
Country | Link |
---|---|
US (1) | US4754081A (en) |
EP (1) | EP0280403B1 (en) |
JP (1) | JPS63201140A (en) |
AT (1) | ATE70253T1 (en) |
CA (1) | CA1310665C (en) |
DE (1) | DE3866728D1 (en) |
ES (1) | ES2029006T3 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5171895A (en) * | 1992-03-23 | 1992-12-15 | Merichem Company | Removal of guaiacol from cresylic acid feedstreams |
US5756781A (en) * | 1995-09-29 | 1998-05-26 | General Electric Company | Method for making tris(hydroxyphenyl) compounds using ion exchange |
JP4447076B2 (en) * | 1999-07-06 | 2010-04-07 | 三井化学株式会社 | Method for cleaving bisphenols |
US11110428B2 (en) | 2019-10-09 | 2021-09-07 | Saudi Arabian Oil Company | Hydrodearylation reactor |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB739907A (en) * | 1952-09-10 | 1955-11-02 | Distillers Co Yeast Ltd | Recovery of phenols |
US3075015A (en) * | 1958-12-31 | 1963-01-22 | Bayer Ag | Processes for the recovery of phenols and carbonyl compounds from crude bisphenolic condensation products |
US3466337A (en) * | 1967-01-30 | 1969-09-09 | Dow Chemical Co | Regeneration of phenol from bisphenol a and byproducts |
DE2508512C3 (en) * | 1975-02-27 | 1981-10-08 | Bayer Ag, 5090 Leverkusen | Process for the preparation of O-derivatives of p-isopropenylphenol |
-
1987
- 1987-02-09 US US07/012,419 patent/US4754081A/en not_active Expired - Fee Related
-
1988
- 1988-01-25 CA CA000557286A patent/CA1310665C/en not_active Expired - Lifetime
- 1988-01-26 DE DE8888300617T patent/DE3866728D1/en not_active Expired - Fee Related
- 1988-01-26 AT AT88300617T patent/ATE70253T1/en not_active IP Right Cessation
- 1988-01-26 EP EP88300617A patent/EP0280403B1/en not_active Expired - Lifetime
- 1988-01-26 ES ES198888300617T patent/ES2029006T3/en not_active Expired - Lifetime
- 1988-02-09 JP JP63026744A patent/JPS63201140A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
ES2029006T3 (en) | 1992-07-16 |
JPS63201140A (en) | 1988-08-19 |
ATE70253T1 (en) | 1991-12-15 |
CA1310665C (en) | 1992-11-24 |
US4754081A (en) | 1988-06-28 |
EP0280403B1 (en) | 1991-12-11 |
EP0280403A1 (en) | 1988-08-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |